import org.antlr.runtime.*;

public class Main {
	public static void main(String[] args) throws Exception {
		CharStream input = new ANTLRFileStream(args[0]);
		PrefijaLexer lex = new PrefijaLexer(input);
		CommonTokenStream tokens = new CommonTokenStream(lex);
		PrefijaParser parser = new PrefijaParser(tokens);
		parser.prog();
	}
}


